Acta Theriologica

, Volume 58, Issue 3, pp 255–265 | Cite as

Chromosomal variation in social voles: a Robertsonian fusion in Günther’s vole

  • Jan Zima
  • Atilla Arslan
  • Petr Benda
  • Miloš Macholán
  • Boris Kryštufek
Original Paper


The study reports on chromosomes in several populations of social voles from south-eastern Europe and the Middle East. The standard karyotypes of individuals of Microtus hartingi and Microtus guentheri originating from both south-eastern Europe and Asia Minor comprised 54 mostly acrocentric chromosomes. However, variation between populations was found in the amount and distribution of C-heterochromatin in certain autosomes and the sex chromosomes. Furthermore, a specific pattern of argyrophilic nucleolar organizer region distribution was recorded in different geographic populations. In a population from Asia Minor, a heterozygous centric fusion of two autosomes was found. The G-banded karyotypes of M. guentheri and Microtus socialis were compared, and tandem fusions of autosomes were suggested as possible mechanism of the divergence. The karyotypes of the nine currently recognized species of social voles are reviewed, and implications of chromosomal data for systematics are evaluated.


Karyotypes Systematics Microtus guentheri M. hartingi M. socialis C-banding NOR distribution 


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Copyright information

© Mammal Research Institute, Polish Academy of Sciences, Białowieża, Poland 2012

Authors and Affiliations

  • Jan Zima
    • 1
  • Atilla Arslan
    • 2
  • Petr Benda
    • 3
  • Miloš Macholán
    • 4
  • Boris Kryštufek
    • 5
  1. 1.Institute of Vertebrate BiologyAcademy of Sciences of the Czech RepublicBrnoCzech Republic
  2. 2.Department of Biology, Faculty of ScienceSelçuk UniversityKonyaTurkey
  3. 3.Department of ZoologyNational MuseumPraha 1Czech Republic
  4. 4.Laboratory of Mammalian Evolutionary Genetics, Institute of Animal Physiology and GeneticsAcademy of Sciences of the Czech RepublicBrnoCzech Republic
  5. 5.Slovene National Museum of Natural HistoryLjubljanaSlovenia

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